Average annual temperature is 24.6 °C
Absolute maximum temperature: 32.5 °C
Absolute minimum temperature: 17.5 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Atweltota
* Weather data for Atweltota Sri Lanka is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.7 | 29.8 | 30.9 | 32.5 | 30.0 | 29.0 | 28.8 | 29.6 | 29.0 | 29.5 | 29.4 | 29.5 |
| Average daytime temperature (°C) | 27.7 | 28.4 | 29.5 | 30.2 | 28.4 | 27.8 | 27.7 | 28.6 | 27.2 | 27.6 | 28.2 | 28.1 |
| Average temperature (°C) | 23.5 | 24.1 | 24.9 | 25.6 | 25.3 | 24.8 | 24.8 | 25.3 | 24.2 | 24.3 | 24.4 | 24.4 |
| Average night temperature (°C) | 19.8 | 20.5 | 21.6 | 22.3 | 23.2 | 22.8 | 22.6 | 22.8 | 22.3 | 22.1 | 21.9 | 21.8 |
| Absolute minimum temperature (°C) | 17.5 | 19.0 | 20.6 | 21.1 | 21.4 | 21.5 | 21.6 | 22.1 | 21.4 | 21.2 | 21.0 | 20.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.4 | 9.4 | 9.9 | 9.8 | 7.4 | 7.6 | 8.5 | 10.5 | 5.7 | 5.9 | 6.5 | 7.1 |
| Precipitation (mm) | 156 | 139 | 171 | 199 | 269 | 303 | 299 | 191 | 624 | 727 | 772 | 490 |
| Sunny days | 3 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Rainy days | 28 | 24 | 30 | 29 | 31 | 30 | 31 | 31 | 30 | 31 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Atweltota during the most sunny months:
The largest precipitation sum in Atweltota is at